Cartoon Network: Super Secret Crisis War!: Grim Adventures of Billy & Mandy #1
- Publisher: IDW
- Written By: Kate Leth, Louise Simonson
- Art By: Derek Charm, Troy Little
- Language: English
- Digital Release Date: August 20th, 2014
A malfunctioning robot crash-lands in Billy and Mandy's school! Billy wants to keep it, Mandy wants it out, and Grim is just confused. As the robot starts causing havoc, it's up to our heroes (and Billy) to put an end to the mayhem!